Kubernetes init container to verify dependent service(s) are online.
Init container to check if kubernetes service available
Introduction With HELM Scripts containers all try to start at the same time. It depends on how the containers scripts were designed on if there is any sort of delay or dependency cchecking built into them. I wrote a very simple busybox script that can be used to prevent a container from starting until the kubernetes services is needs are available.
In this example there are 3 checks going on.